Triple X System - Chapter 194: Invasion.

A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard’s downfall, he used the wizard’s body as a springboard to gain influence and power in his new world.

- Description from Novelupdates

Yang Ji transmigrated to a world of immortals, where he could see various information displays invisible to others.He looked at a chunk of ore, “Mystic Iron Ore”.He looked at a dead frog, “Died of Gu Insect, dead for fifty breaths”.He looked at the sky, “The sky is overcast, and a heavy rain will pour down in an hour”.He looked at humans, “Thinking”, “I want to seize your body”, “Angry”, “Sneaky”.When he looked at himself, a proficiency panel appeared.With the attributes he could see, Yang Ji sought good fortune and avoided disaster. Step by step, he walked the path to the supreme immortal way.

I became a ghost in the horror game [Mystery Exploration Club ~Summer Vacation Nightmare~]. Give me back my body.Translator’s summary:Han Yoo-hee is an unlucky man who fell into the world of a horror game and became the tutorial boss.Now, wanting to go back, he will guide the protagonist and her group through the game and achieve the ending, confronting many different monsters and finding more about the truth of this world.

Talented in Magecraft but useless in physical combat?